When building with GCC 10.2 configured with --extra-cflags=-Os, we get: target/arm/m_helper.c: In function ‘arm_v7m_cpu_do_interrupt’: target/arm/m_helper.c:1811:16: error: ‘restore_s16_s31’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 1811 | if (restore_s16_s31) { | ^ target/arm/m_helper.c:1350:10: note: ‘restore_s16_s31’ was declared here 1350 | bool restore_s16_s31; | ^~~~~~~~~~~~~~~ cc1: all warnings being treated as errors
Initialize the 'restore_s16_s31' variable to silence the warning. Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- target/arm/m_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c index 61760030292..731c435c00b 100644 --- a/target/arm/m_helper.c +++ b/target/arm/m_helper.c @@ -1347,7 +1347,7 @@ static void do_v7m_exception_exit(ARMCPU *cpu) bool exc_secure = false; bool return_to_secure; bool ftype; - bool restore_s16_s31; + bool restore_s16_s31 = false; /* * If we're not in Handler mode then jumps to magic exception-exit -- 2.26.2